Tetraphenylporphyrin Tetrasulfonic Acid Hydrate for spectrophotometric det. of transition metals, 95% 35218-75-8 C₄₄H₃₀N₄O₁₂S₄·xH₂O 934.99(anhy) g./mol £56.54 View
р-Touidine for spectrophotometric det. of Au,Tl(III),W, 99% 106-49-0 C₇H₉N 107.15 g./mol £213.05 View